@article{10_2298_PIM0999047S,
     author = {Dragan Stevanovi\'c and Sanja Stevanovi\'c},
     title = {ON {RELATION} {BETWEEN} {SPECTRA} {OF} {GRAPHS} {AND} {THEIR} {DIGRAPH} {DECOMPOSITIONS}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {47 },
     publisher = {mathdoc},
     volume = {_N_S_85},
     number = {99},
     year = {2009},
     doi = {10.2298/PIM0999047S},
     zbl = {1224.05322},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.2298/PIM0999047S/}
}